Nexcom Peak 555A, Руководство пользователя

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Peak 555A User’s Guide
Watch Dog Timer A-5
b. Select WDT timer setting (use port F2)
MOV AL, 06 ; Setting WDT=1 sec.
MOV DX, 0F2
OUT DX, AL
c. Select WDT for NMI or reset (select NMI)
MOV DX, 70
MOV AL, 7D
OUT DX, AL
MOV DX, 71
IN AL, DX
OR AL, 10
MOV DX, 0F2
OUT DX, AL
MOV BL, AL
MOV DX, 70
MOV AL, 7D
OUT DX, AL
MOV DX, 71
MOV AL, BL
OUT DX, AL
d.
Enable WDT
MOV DX, 70
MOV AL, 7D
OUT DX, AL
MOV DX, 71
IN AL, DX
OR AL, 08
MOV DX, 0F2
OUT DX, AL
MOV BL, AL
MOV DX, 70
MOV AL, 7D
OUT DX, AL
MOV DX, 71
MOV AL, BL
OUT DX, AL